Datasheet

AD7476A/AD7477A/AD7478A
Rev. F | Page 4 of 28
Parameter A Grade
2
B Grade
2
Y Grade
2
Unit Test Conditions/Comments
LOGIC OUTPUTS
Output High Voltage, V
OH
V
DD
– 0.2 V
DD
– 0.2 V
DD
– 0.2 V min I
SOURCE
= 200 μA; V
DD
= 2.35 V to 5.25 V
Output Low Voltage, V
OL
0.4 0.4 0.4 V max I
SINK
= 200 μA
Floating-State Leakage Current ±1 ±1 ±1 μA max
Floating-State Output Capacitance
6
5 5 5 pF max
Output Coding Straight (Natural) Binary
CONVERSION RATE
Conversion Time 800 800 800 ns max 16 SCLK cycles
Track-and-Hold Acquisition Time
3
250 250 250 ns max
Throughput Rate 1 1 1 MSPS max See Serial Interface section
POWER REQUIREMENTS
V
DD
2.35/5.25 2.35/5.25 2.35/5.25 V min/max
I
DD
Digital I/Ps = 0 V or V
DD
Normal Mode (Static) 2.5 2.5 2.5 mA typ V
DD
= 4.75 V to 5.25 V, SCLK on or off
1.2 1.2 1.2 mA typ V
DD
= 2.35 V to 3.6 V, SCLK on or off
Normal Mode (Operational) 3.5 3.5 3.5 mA max V
DD
= 4.75 V to 5.25 V, f
SAMPLE
= 1 MSPS
1.7 1.7 1.7 mA max V
DD
= 2.35 V to 3.6 V, f
SAMPLE
= 1 MSPS
Full Power-Down Mode (Static) 1 1 1 μA max Typically 50 nA
Full Power-Down Mode (Dynamic) 0.6 0.6 0.6 mA typ V
DD
= 5 V, f
SAMPLE
= 100 kSPS
Power Dissipation
7
0.3 0.3 0.3 mA typ V
DD
= 3 V, f
SAMPLE
= 100 kSPS
Normal Mode (Operational) 17.5 17.5 17.5 mW max V
DD
= 5 V, f
SAMPLE
= 1 MSPS
5.1 5.1 5.1 mW max V
DD
= 3 V, f
SAMPLE
= 1 MSPS
Full Power-Down Mode 5 5 5 μW max V
DD
= 5 V
3 3 3 μW max V
DD
= 3 V
1
Temperature ranges are as follows: A, B grades from –40°C to +85°C, Y grade from –40°C to +125°C.
2
Operational from V
DD
= 2.0 V, with input low voltage (V
INL
) 0.35 V maximum.
3
See the Terminology section.
4
B and Y grades, maximum specifications apply as typical figures when V
DD
= 4.75 V to 5.25 V.
5
SC70 values guaranteed by characterization.
6
Guaranteed by characterization.
7
See the Power vs. Throughput Rate section.